The results of VHF ionospheric scatter measurements made in the European-Mediterranean area are shown to be in good agreement with results obtained in continental United States.Sporadic-E propagation was observed much more frequently in the EuropeanMedite Topic: Ionospheric radio wave propagation.
Extensive numerical results are presented for the reflection coefficient of a horizontally stratified ionized medium. The profiles of electron density and the collision frequencies are both taken to be exponential functions. The d-c magnetic field is ta Topics: Electromagnetic waves., Ionospheric radio wave propagation.
byMenzel, Donald H.; Smith, Ernest K., Jr. (editors)
Contents:Microscopic theory of ionospheric cross-modulation; Ionospheric wave interaction using gyro-waves.Part 1.The night-time lower E-region; Wav * e interaction at oblique incidence, near the gyro frequency; Non-linear propagation of electromagnetic w Topics: Ionosphere--Congresses., Ionospheric radio wave propagation--Congresses.
The principal results of this technical note are graphical presentations of the attenuation rates, phase velocities, and excitation factors for the dominant modes in the earth-ionosphere waveguide.The frequency range considered is 8 kc/s to 30 kc/s. *The Topics: VLF emissions., Ionospheric radio wave propagation.
A collection of titles and abstracts is presented for articles dealing with the microwave fading that has been observed on tropospheric line of sight paths.Selections are included for related subjects such as:measurement of meteorological factors; spatial Topics: Tropospheric radio wave propagation--Bibliography., Radio waves--Bibliography.
An approximate theory for conversion of modes in an earth-ionosphere waveguide is propounded.The model is two concentric spherical reflecting boundaries which have prescribed surface impedances.The localized irregularity at either the ground or the ionosp Topics: VLF radio wave propagation., Wave guides., Lower ionosphere.
byJanes, H. B.; Kirkpatrick, A. W.; Waters, D. M.; Smith, D.
Propagation measurements at 9.4 and 9.2 Gc/s were made over a 47 km, line-of-sight, over-water path at Eleuthera Island in the Bahamas.The purpose was to study the signal amplitude and phase variations at the two frequencies, and in particular, the variat Topics: Shortwave radio--Transmitters and transmission., Tropospheric radio wave propagation.